Vwout - 2015-11-01

You can use WIDI to replicate a display on your Chromecast. This means that the TV your Chromecast is plugged into, shows exactly the same as the display on your computer.

You can also use a webpage that is running on the Chromecast to connect to OpenSong and show the images created by OpenSong. Unfortunately there is no full description that explains it in easy words. I would not mind to do it, but I don't have a Chromecast at hand right now.
For (technical) info on this, see https://sourceforge.net/p/opensong/discussion/373379/thread/56dad2d8/